19976216

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{479}}^1$

素因数の和:899

約数の個数: 32

約数和(自身を含む): 40521600

約数和(自身を除く): 20545384

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 401, 479, 802, 958, 1604, 1916, 3208, 3832, 5213, 6227, 10426, 12454, 20852, 24908, 41704, 49816, 192079, 384158, 768316, 1536632, 2497027, 4994054, 9988108, 19976216]

約数ペア:

[(1, 19976216), (2, 9988108), (4, 4994054), (8, 2497027), (13, 1536632), (26, 768316), (52, 384158), (104, 192079), (401, 49816), (479, 41704), (802, 24908), (958, 20852), (1604, 12454), (1916, 10426), (3208, 6227), (3832, 5213)]